Thyroid Stimulating Hormone (TSH) Test

The TSH Test at Pamel Laboratories measures the level of Thyroid Stimulating Hormone (TSH) in your blood. TSH is produced by the pituitary gland and plays a vital role in regulating the thyroid gland, which controls your body’s metabolism, energy levels, and growth.

This test is the first-line screening tool for assessing thyroid function, helping detect conditions like hypothyroidism (underactive thyroid) and hyperthyroidism (overactive thyroid). It’s also used to monitor thyroid hormone replacement therapy and detect pituitary gland issues.

What the Test Measures:

• The concentration of TSH hormone in the bloodstream

• Reflects how well your thyroid is functioning

Purpose of the Test:

• Diagnose:

  • Hypothyroidism (high TSH levels)

  • Hyperthyroidism (low TSH levels)

• Monitor:

  • Thyroid hormone therapy

  • Post-thyroid surgery or treatment

• Evaluate:

  • Unexplained weight changes

  • Fatigue, depression, or irregular menstrual cycles

  • Goiter or thyroid nodules

Sample Type: Blood sample (serum)
Fasting Required: No
Best Time for Test: Morning (recommended)
Turnaround Time: 24–48 hours

Interpretation Guide:

• High TSH: Suggests underactive thyroid (hypothyroidism)

• Low TSH: Suggests overactive thyroid (hyperthyroidism)

Additional tests (e.g., T3, T4, Anti-TPO) may be recommended for complete thyroid profiling